Monosaccharide

Q.

What are reducing sugars?

Q.

Is Glucose a reducing sugar?

Q.

The reagents which do not react with glucose are

I. Schiff's reagent II. Tollen's reagent III.Fehling's solution IV. NaHSO₃

1. All
2. I & IV
3. I, II, III
4. I, III, IV

Q.

The reagents which do not react with glucose are

I. Schiff's reagent II. Tollen's reagent III.Fehling's solution IV. NaHSO₃

1. All
2. I & IV
3. I, II, III
4. I, III, IV

Q.

A non-reducing sugar "A" on hydrolysis gives two reducing monosaccharides. Sugar A is

1. Glucose

2. Fructose

3. Sucrose

4. Galactose

Q.

QUESTION 14.4

Classify the following into monosaccharides and disaccharides, Ribose, 2- deoxyribose, maltose, galactose, fructose and lactose.

Q.

QUESTION 14.1

What are monosaccharides?

Q.

Monosaccharides contain carbonyl group hence are classified, as aldose or ketose. The number of carbon atoms present in the monosaccharide molecule is also considered for classification. In which class of monosaccharide will you place fructose?

Q.

Number of - OH groups present in the cyclic structure of 'deoxy ribose' sugar

1. 3
2. 2
3. 5
4. 4

Q.

When the following aldohexose exists in its D-configuration, the total number of stereoisomers in its pyranose form, is___

Q.

Butanal and 2-methyl propanal are examples of which type of isomerism?

1. Chain isomerism

2. Tautomerism

3. Position isomerism

4. Functional isomerism

Q.

Is Fructose a 5 Carbon Sugar?

Q. Which one given below is a non - reducing sugar?

1. Glucose
2. Sucrose
3. Lactose
4. maltose

Q.

Which of the following monosaccharides are present as five-membered cyclic structure (furanose structure)?
(a) Ribose (b) Glucose (c) Fructose (d) Galactose

Q.

Their cyclic structures of monosaccharides are given below which of these are anomers.

(a) I and II (b) II and III
(c) I and III (d) III is anomer of I and II

Q.

Select the incorrect statement

1. Fructose is reducing sugar with keto group

2. Maltose is reducing sugar

3. Sucrose is non reducuing non sugar

4. Glucose is reducing sugar

Q.

Classify the following into monosaccharides and disaccharides.

Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose

Q. Structure of glyceralaldehyde.

Q. explain the process of chromatography ?

Q. The given structure is called as

1. Aldopentose
2. Ketohexose
3. Ketoheptose
4. Aldohexose

Q.

Sodium is an essential constituent of our body. Calculate the percentage of sodium in the breakfast cereal which has been advertised to contain 40 mg of sodium per 50g of the cereal.

Q. Which of the following is the Fischer projection of L – threonine (also known as 2S, 3R-2-amino- 3-hydroxy butanoic acid)?

1. 
2. 
3. 
4. 

Q. What is the minimum number of carbons required for an organic compound to show geometrical isomerism?

1. 1
2. 2
3. 3
4. 4

Q. When the following aldohexose exists in its D-configuration, the total number of streoisomers in its pyranose form is:
$CHO-C{H}_2-CHOH-CHOH-CHOH-C{H}_{2}OH$

Q. why catalytic activity increases from group 5 to group 11? (explian in detail.)

Q. Which of the following compounds will behave as a reducing sugar in an aqueous $KOH$ solution?

1. 
2. 
3. 
4. 

Q. When the following aldohexose exists in its $D$-configuration, the total number of stereoisomers in its pyranose form is

Q.

1. True
2. False

Q. Name two monosaccharide present in sucrose.

Q. Sucrose is a non reducing sugar